[PATCH] update Documentation/kernel-parameters.txt

Signed-off-by: Njens m. noedler <noedler@web.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Documentation/kernel-parameters.txt

@@ -110,6 +110,13 @@ be entered as an environment variable, whereas its absence indicates that
 it will appear as a kernel argument readable via /proc/cmdline by programs
 running once the system is up.
 
+The number of kernel parameters is not limited, but the length of the
+complete command line (parameters including spaces etc.) is limited to
+a fixed number of characters. This limit depends on the architecture
+and is between 256 and 4096 characters. It is defined in the file
+./include/asm/setup.h as COMMAND_LINE_SIZE.
+
+
 	53c7xx=		[HW,SCSI] Amiga SCSI controllers
 			See header of drivers/scsi/53c7xx.c.
 			See also Documentation/scsi/ncr53c7xx.txt.